Gabriela Gunčíková, also known as Gabriela Gun, is a Czech singer. Her singing voice has been described as a cross between Sheryl Crow and Ann Wilson from the band, Heart. She was the runner-up of the second season of Česko Slovenská SuperStar and won the New Artist award at the 2011 Český slavík awards. Gunčíková was a touring vocalist of the Trans-Siberian Orchestra from 2014 until 2015. She represented the Czech Republic at the Eurovision Song Contest 2016 in Stockholm with "I Stand".

SuperStar is a joint Czech-Slovak version of the Idol series' Pop Idol. It was merged from Česko hledá SuperStar and SuperStar Search Slovakia, which previously had three individual seasons each. The first season premiered in September 2009 with castings held in Prague, Brno, Bratislava and Košice. It is broadcast on two channels: «TV Nova» and «Markíza» (Slovakia) which have also been the broadcast stations for the individual seasons. Also both hosts have been their hosts countries before as have been three out of the four judges. To legitimate a fair chance for each country's contestants to reach the final, twelve of the contestants will compete split into genders and nationalities in the semifinals, guaranteeing a 50% share for each country in the top 12.